I have a 96 855 t5 ard green tune obx exhaust good compression numbers PVC just replaced upper lower intercooler hoses replaced and when driving it even at wot it will just stay at 4000 rpm not go any higher and won't pull like it should be also it's goes and holds 17 psi and wastegate is adjusted properly. Thanks in advance

 

This is just painful to read.


Translation:


I have a 96 855 T5.


It has an ARD green tune, an OBX exhaust, and good compression numbers.


PVC just replaced.


Upper and lower intercooler hoses replaced.


Turbo holds 17psi and wastegate is adjusted properly.


When driving it, even at WOT the car will not rev over 4000rpm, and doesn't have the power it should.

 

Now, is it manual or automatic?


How many miles (or km)?


Was it running fine and then started playing up, or did it play up as a result of work being done on the car?

 

It's a auto and has about 170k on it.
Been like this for a few months thought it was the upper intercooler hose collapsing but I changed it and it didn't fix the problem.
The car runs and drives fine pulls great but after doing a few pulls it just holds 4k and if i drop it down in first gear it will go past 4k but in drive or 3rd it just doesn't rev out.